Sand-filter valve



June 15,1926. 1,588,620-

M. F. RYAN sum FILTER VALVE Filed Dec. 24. 1921 Patented June 15, 1926.

UNITED STATES MATTHEW 1. RYAN, OF FLORENCE, IIIASSACHUSETTS.

SAND-FILTER VALVE.

Application filed December 24, 1921. Serial No. 524,806.

This invention relates to sand filter valves and has for its object toprovide a device of this character constructed to permit theunobstructed flow of liquid through the valve but prevent the entranceof sand and like matter or sediment. I

Another object of the invention is to pro- .vide a valve of thischaracter capable of being readily applied and removed, and wherein thesections of the, valve may also be readily disassembled for cleaning.Without disengaging the main portion or stem of the valve from itssupport or conduit.

It is also an object of the invention to provide a valve of thischaracterincluding a stem and a spaced straining member or guard and astrainer cap, the stem of the valve being adapted to hold the cap inspaced relation'to the strainer member or guard. I

A further object of the invention is' to provide a valve of thischaracter including a supporting stem and spaced strainer or guardmembers substantially embracing the stem, the strainer or guard membersbeing spaced from each other to permit the entranceof fluid or water andprevent the entrance of sand or solid matter.

lVith these and other objects in View, the

a portion of the stem being shown in SQC",

tion; 7

Figure 3 is a perspective view of the strainer member; 7

V Figure 1 is aperspective view of the cap;

Figure 5 is a side elevation of another form of the invention; 1

Figure 6 is a perspective view of the valve stem and plate of the formshown in Figure 5; and

Figure 7 is a perspective view of the cap shown in Figure 5.

Referring to the drawings, 5 designates the valve stem, the end portion6 of the valve being enlarged and exteriorly threaded, said stein havinga bore 7 extending longitudinally of the stem through the end 6 andterminating inwardly of the end 8, the stem being provided with opposedopenings 9 in the side walls thereof, said openings communicating withthe bore 7. The end 8 of the stem is reduced to provide an annularshoulder 8 and a threaded extension 10, the extension 10 having arelatively small opening extending therethrough and communicating withthe bore 7 Formed integral with'the enlarged end portion of the stem andextending toward the end 8.is an annular dished flange 11, said flangehaving an annular groove 12 provided at the junction of said flange withthe enlarged end 6. The purpose of the flange 11 to provide a seat orreceptacle for the various types of the straln'ers or guards and to alsopermit new strainersor guards to be applied without disengaging the stemofthevalve from the conduit or pipe.

In connection with the stem 5 a guard or strainermember 13 is provided,the exterior portion of said strainer member be'ings'ubstantiallyconcavo-convex, while the inner portion of said member, is substantiallydished 'orconcaved. The apex portion of said guard orstrainer memberhaving an oiening, an annular flange 1 1 being provided at the outerface of the opening, said collar being adapted'toextend into the annulargroove ofthe enlarged end 6 to hold "said openingin spaced relationto-the stem o and to also properly position the guard or strainer memberwithin the seat or flange 11. Extending from the outer edge of the guardor strainer member and terminating at the intermediate portion thereof,is a plu- "ality of slits 15 which provide water inlets tor the valve,the slits substantially radiating from the apex portion of the guard orstrainer member, and while they permit the entrance of liquid such aswater, they positively prevent the entrance of sand, sediment and thelike.

a In connection with the guard or strainer member 18,. a strainer memberor cap 16 provided, said cap being substantially concavo-convex andhaving a central opening 17 the inner face of the cap 16 adjacent theend of the opening 17 being reduced to provide an annular recess 18corresponding in diameter to the diameter of the stem 'A plurality ofslits 19 are provided in the cap, said slits extending from the edge ofthe cap inwardly and terminating at the intermediate portion of the cap,every other slilv being longer than the adjacent slit. 7

In assembling the valve, the guard or era tion of the stem, is amany-sided col strainer ielnber 13 is placed upon the seat or support 11"and the extension of the stem passed through. the opening 1?, to permitengagement of the shoulder 8 with the inner wall of the recess 18. Theshoulder S is intended to hold the cap 16 in spaced relation to theupper edge oi the strainer 111611? her 13, a distance corresponding tothe width of oneoii the slits, so as to permit the passage of water butprevent the passage of sand and like n atterpthe Water entering tl e.vali-';e pa s 1g throughthe openings 9 into the bore? and out throughthe enlarged end .6 ot .the stern which is disposed in a conduit ortank',

.ln l jigures f fi andfflanotlier fioiini of the invent onis shown, Thisfor fn comprises a stem, som

iat similar in construction to the stenrfiwnh the exception that thedished fl ns ae el:a saem t 'd am des guard palte 2O sul sti t-uted, theplateheing forined integral with the stein, and havino' its upper sionor collar 23 having anyopening or bore '24, the borebeing reduced at theextremity of said collar-to providean inner annular shoulder 25,adapted, to engage tl ie, shoulder carriedby'the upper end of the stern.The threaded end of the stem. passes through the opening, so thatsimilar to the strainer cap 16, the strainer cap 22 18 disposed inspaced relation to the plate or guard 20 to perniit the entrance ofwater and prevent the entrance of sand or like forei 'n inatter.

The cap 22 is also provided with a plural it}; of substantiallyradiating slits 26 which extend from the periphery of the cap andterminate adjacentthe face 01" the collar or To secure each of the caps22 extension 23. I and 16 to thelr respective Steins, nuts 27 are ;provided, said nuts being engaged with the threadedextensions of the stems.

From the foregoing it will be readily seen. 7 thatv this invent onprovides I a novel arrangement of a sand filter valve w ion is highlyefficient, in that the various parts of the valveniay be disassembledfor cleaning without requiring the reinoval'ot the inain part of thevvalve,, such as the valve stem, iro n the condult or tank so that thevalve ay he used indefinitely with entire satis faction. 7

What s claimed is V I A device the character described coniprising astein havin ga longitudinal bore therethrough and lateral openingsintermediate its ends communicating with said bore, an enlarged memberon the stem spaced from the lower end thereof, a guard seated upon saidmember, a reduced threaded e2;- tensionat the upper end of the stemdefining a shoulder, a cap seated upon said shoulder with itsflower edgein spaced parallel relation to the guard, and a nut screwed upon f thereduced extension for holding the cap in place.

In testnnony whereof I hereunto aliix my signature. 7

'MATT'HEW F. RYAN.

